Vulcanizer.



No. 891,687. PATENTED JUNE' 23., 190s.

W. D. GRATAMA.

VULGANIZBR.

APPLICATION FILED JAN. 10. 1908.

Z BHEETS-SHEET l.

VULGANIZBR.

APPLICATION FILED JAN.10. 1908.

2 SHEETS-SHEET 2.

www @MM f@ ers on conducting wires or the pressure of the steam or flui WILLEM DIGNUS GRATAMA, OF RIJSXVIJK, NETHERLANDS.

vULoANizEE.

Specification of Letters Patent.

' Patented June 23, 1908.

Application filed Januaiy 1o, 190s. serial No. 410,171;

To all whom it may concern.'

Beit known that I, WILLEM DIGNUs GRA- TAMA, a subject of the Queen of the Netherlands, residing at Rijswijk, in the Kingdom of the Netherlands, have invented a new and useful Vulcanizer, of which` the following is a specification. y Hy invention relates to improvements'in vulcanizers for vulcanizing endless or vervlong strips, belts, rods or percha, india-rubber etc., also insulating' laythe like, whereby it is rendered possible to vulcanize these articles not .by means or'heat' alone as hitherto, but also under pressure, so that a better quality of 'thegoods is insured.

The improved vulcanizer may consist of two pulley or drum casings below, one pulley or drum casing above and two vertical `tubes between them, to which steam or other 'luid under pressure is admitted. For reserving d), the two s are filled with a lower 1pulley or drum casi re erably mercury,

shutt' g oi liquid, through which the goo are connected with two vertical open tubes, in which the shutting-off liquid or mercury is permitted to rise under the pressure ofthev ings, in which` Figure 1 is .a vertical longitudinal section through an improved vulcanizer in a mode of execution, the pulleys or drums being indicated by circles, and Fig. 2 is a vertical longitudinal section through an im roved vulcanizer, which comprises more pu eyor drum casings than the preceding one.

he improved yulcanizer `shown at Fig. 1 comprises an upper pulley or drum casing 1, two owerulley or drum casings 2 and 3, two vertica internal tubes 44 and 5 hermetically connected with the upper and lower casings, and two vertical external tubes 6 and 7 open at the top. The two internal tubes 4 and bottom by the like of guttaf s are passed. Preferably the two lower pulley-or drum casings with one another at top means of suitable connections 8 and 9, of which the'up er one 8 is connected by a tube 14, a stop va ve 16, and a tube 17 with the source of steam or other i'luid under pressure and thel lower nected with a waste tube' 15, a stop valve 1S and a steam trap 19 or the like. The pulley or drum casings 1, 2 and 3 may be of any known construction. `The cross section of the several vertical tubes 4, 5, 6 and 7 may be circular, oval, rectangular or of any other shape in accordance with the goods to be treated. The whole vulcanizer is made tight with the exception of the upper ends ofthe the two open. The vulcanizer and the external pulleys vordrums 10, 11, 12 ported by any knownframe, not shown. Normally the two lower pulley or drum casings 2 and 3 and the lower ends of all the vertical tubes 4, 5, 6 and 7 are filled off liquid, preferably mercury, up to a peint beneatl the lower connection 9.

The free endof theendlress or very long strip, belt, rod or the like of gutta-percha, india-rubber, etc. to be vulcanized, is in any known manner passed over a pulley or drum 10 or unwound from a drum 10 and passed and A5 are connected over' a guiding pulley or druml 11 and introdirection of When it emerges from the shutu ced into the vulcanizer in the the arrows. ting-off liquid or mercury within the irst internal tube 5, the steam or fluid under pressure isturned on, so that it'passes through the tube 17, the stop valve 16, the tube 14 and the connection 8 into the tubes 4 and 5 and the upper pulley casing 1 and acts upon the goods, while it forces the shutting-off liquid or mercury down in the internal tubes 4 and 5 and up in the external tubes 6 and 7, theghead of the liquid being such, that the weiglit of its column per -unit of area is equal to-thevpress'ure of the steam or fluid. The Shutting-OHliqud or mercury prevents the 'steam or fluid from escaping, and only the condensing water is permitted t0\ escape through the connection 9, the tube 15, and the stop valve 18 into the steam trap 19 or theilike, which latter servesrfor'preserving the pressure ofthe 'steam or iluid.`

The vulcanized article 4leaving the vulcanizer and passing over a guiding pulley or drum 12, maybe drum 13 or it may be conductedto some place for further treatment.,

connection' 9 is conexternal tubes 6 and 7,-which are left with' a shuttingwound on the pulley or,

and 13 may be suphave to depend upon 'the I in a serpentine ine.

explanations.

The length of the tubes 4, 5, 6 and 7 will ressure of the steam or fluid and the speci 'c weight of the shutting-off liquid. The two external tubes 6 and 7 must be made so long, that under `the maximum pressure of the steam or iiuidthe .shutting-off'lquid can never overflow'. The

speed, with which the article is passed, depends of course upon the time, .which the article of gutta-percha, india-rubber etc. or the insulating layer on a conducting wire, or the like requ1res for its vulcanization.

The vulcanizer described is also suitable for vulcanizing india-'rubber belts with or without insertions and of any width, for'vulcanizing solid rods of guttapercha, indiarubber or the` like intended for wheel rims,

more particularly those of the'Y cheaper sorts, such as for wheels of perambulators etc.

' Where the spaceis limited, the length of the internal tubes 4 and 5 may be reduced and their number may be increased, additional pulleyT or drum casings similar to 1, 2 and 3 being inserted above and` below and connected with the tubes, so that the goods to be vulcanized ass through the Lvulcanizer An example is illustrated in Fig. 2, which requires no further Of course onlyy the extreme lower pulley or drum casings and their vertical open tubes need be filled with `the shuttinIg-off liquid or mercury. claim:` y

1. A vulcanizer 4comprising a chamber with two mouths sealed with -a shutting-,off liquid, means for passing the goods to be vulcanized through the shutting-off liquid in one mouth into the chamber and therefrom through the shutting-off liquid in the other mouth, and means for supplying a hot fluid under pressure to the chamber.

2. A vulcanizer comprisin a chamber with two mouths sealed wlth mercury, means for passing the goods to be vulcanized through the mercury in one mouth into the chamber and therefrom through the mercury in the other mouth, means for supplying steam under'pressure to the chamber, and means for leading off the condensing-water while preserving the pressure in the chamber.

-3. A vulcanlzer comprising a chamber with two mouths, two casings adjoining said two mouths and 1f provided with two o'pen erect tubes and led w1th a shutting-off liquid, means for passing the goods to be'A vulcanized through the" shutting-offliquid in one tube and casing into the chamber and therefrom through the shutting-off liquid in the other casing and tube, and means for suplying a hot fluid under pressure to the chamer. l

4. A vulcanizer comprising al chamber with two mouths, two casings adjoining said two mouths and provided with two open erect tubes filled with mercury, means for 'sure to said vertical internal tubes,

sence? passing the goods to be vulcanized through the mercury in one tube and casingmto the chamber and therefrom through the mercury in ythe other casing and tube, means for supplying steam unde'r pressure to the chamber, and means for leading off the condensingwater while preserving the pressure in the chamber.

' 5. In a vulcanizer, the combination with anupper casing having two mouths, of two lower casings each having two mouths, vtwo vertical internal tubes hermetically connect? ing the mouths of the upper casing with the internal mouths ofthe two lower casings so as to form a serpentine course, two vertical external tubes on the external mouths of the two lower casings and open at thetop, guiding means in said three casings, means for supplying a fluid under pressure to said two vertical internal tubes, a shutting-oft1 liquid in said two lower casings permitted to rise in said two'v vertical external tubes under the pressure of the fluid, and means for passing the goods to beV vulcanized through the shutting-off liquid in one external tube and one lower casing through the ser entine course over said uiding means and t rough the shuttingeof't' iquid in the other lower casing and other external tube.

6. Ina vulcanizer, the combination with a plurality of upper casin s each having two mouths, of a pluralityo lower casingseach having two mouths, a plurality of vertical internal tubes. hermetically connecting the mouths of said upper an d lower casings so as to form a serpentine course, two vertical external tubes on the remaining mouths of the two extreme lower casings and open atV the top, guiding means in said upper and lower cas- 1ngs, means for supplying a fluid under presa shutting-off liquid in the two extreme lower c asings permitted to rise in said two vert1cal external tubes under the@ pressure of the lluid, and means for assing the goods to be vulcanized through the shutting-off liquid in one external tube and one external lower casing through the serplerntine course over Y said guiding means and t ough the shutting-l ofl' liquid in the other extreme lower casing and other external tube.

7. In a vulcanizer, the combination withV an'upper casing having two mouths, of two lower casings each having two mouths, two vertical internal tubes hermetically connecti the mouths of the upper i casing with `t e internal mouths of the two lower casings so as to form a serpentine course, two vertical external tubes on -the external mouths of the two lower casings and open at the top, guidi means in said three-casings, means for supp steam under pressure to v ,said two vertical internal tubes, mercury in said two lower casmgs permitted to rise 1n sald two vert1cal external tubes under the 130 pressure of the steam, means for leading ol condensing-water from said"i two vertical internal tubes While' preservingV the pressure of the steam, and means for passing the goods to be vulcanized through the mercury in one external tube and one llower casing through the serpentine course over said guiding means and through lower casing and other external tube.

8. In a vulcanizer, the combination with a plurality of up er casings, each having two mouths, of a plilrality of lower casings each having two mouths, a plurality of vertical internal tubes hermetlcally connecting the mouths of said upper and lower casings so as to form a serpentine course, two vertical external tubes on the remaining mouths of the two extreme lower casings and open at s the top, guiding means in said upper fand the mercury in the other'7 lower casings, means for supplying steam under pressure to said vertical internal tubes, mercury in'the two extreme lower casings permitted to rise insaid two vertical internal tubes under the pressure of the steam, means for leading ofi condensing-water from said internal tubes -whilel preserving the pressure of the steam, and means for passing the goods to'be vulcanized through the mercury in one external tube and one external lower casing through the serpentine course over said guiding means and through the mercury in the other extreme lower casing and other external tube.

WILLEM DIGNUS GRATAMA. 

